DOCUMENTATION_FORMAT: VOLATILE
SAMPLE_ID: Acetylene MTG
MATERIAL_TYPE: Alkyne
MATERIAL: Acetylene
FORMULA: C2H2
FORMULA_HTML: C2H2
COLLECTION_LOCALITY: Purchased from Matheson TriGas.
COLLECTION_LATITUDE: Not Available # degrees and decimal minutes (N or S)
COLLECTION_LONGITUDE: Not Available # degrees and decimal minutes (W or E)
DATUM: Not Available # coordinate datum
ORIGINAL_DONOR:
CURRENT_SAMPLE_LOCATION: USGS Spectroscopy Lab, Denver, CO
ULTIMATE_SAMPLE_LOCATION: USGS Spectroscpy Lab, Denver, CO
SAMPLE_DESCRIPTION:
Colorless gas with a sweet odor
Other Names: Ethyne; ACETYLENE; Narcylen; Ethine; Acetylen
CAS #: 74-86-2
Sample was purchased from Matheson TriGas and is 99.6% pure, came dissolved in Acetone
IMAGE_OF_SAMPLE: Not Available
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: Analysis done by Matheson TriGas.
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION: Condensed on an aluminum substrate which was sitting in liquid nitrogen, the aluminum substrate shows as the broad 0.86-micron feature. The major sharp features are consistent with acetylene. The ~1.5-micron feature is the first overtone of the fundamental near 3-microns.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1b2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns